Yarn spool for tube frames



1 96 May 3 E. F. HATHAWAY ET AL YARN SPOOL FOR TUBE FRAMES Filed Sept. 4, 1926 2 nvv Tom Walk/23 0/ d- MWATTORNEY Patented May 31, 1927.

uni-ran, srafrss PATENT OEFICE.

EDGAR l-IATI-IANAY, OE \UELLESLEY, AND WALTER BIXBY, OF BOSTON, MASSACHU- SETTS, ASSIGNORS TOSHAWMU'IENGINEERINGCOMIANY, OF BOSTON, MASSAG HU- snr r s, A oon'rona'rron oF-MAss iorrUsETirsr YARN SPOOL FOR TUBE FRAMES.

Application fi led September 4, 1926. Serial No. 133,593.

This invention relates to yarn spools adapted to be rotatably mounted insuitable hearings to deliver yarn for tuft weaving or other purposes, and 'it is intended toprovid-e ajournalconstruction that will permit interchange oi 'spo'ols used singly'with those used as section or units of a multiple section spool and will permitthe endwise reversal otthe spool, WllQtllBl used singly or as a section of a series.

This improvement, while particularly intended to meet certain problems in tuftyarn weaving, as euemplified in the manufacture of Ariminster carpets and the'like, is adapted toot-her purposes also in which multiple-sectionspools are used forthe de livery. of yarn or where interlocking spool sections are employed.

In the manufacture of Axininster rugs, whether of single width or of seamless multiple width, it is the practice to wind the di tierent colei'ed'tuft yarn elements on the individual. spools in a definite order to produce a predetermined pattern in the weaving. Such spools, identified by their individual pattern numbers, are stored for use when needed. This practice, however, requires the winding and the keeping in stock of a much larger number of spools and a larger supply ot'yarn than would be nec essary if spools for single Width tube frames could-equally well he used as units or sec tions of the yarn-spool of a wide seamless looin tube-frame. Furthermore, it is often desired to reverse a particular pattern in a seamless rug so that the outside ofthe pattern will occupy interior portions of the rug or vice versa.

frame, as in those oi a single spool tube frame, are necessarily small, While the bearings in the middle bearing stands or brackcts are much larger, thepattern spools ot' a single tube-frame can not be mounted in the-bearings of a multiple spool tube-frame. Neither can the spoolsections of a wide tube-frame be reversed or interchanged with one another. i i

A iuri'zher ditiiculty is due to the require ment that the spool sections be interlocked $ince the bearing apertures 7 1n the end brackets ot a multiple spool-tube with one another to insure equal rotation and equal delivery of yarn from the spool sections. All these difliculties will be readily understood by a consideration of prior art practice as illustrated, for example, in

the U; S. patent, 'Hutchins, 1,067,656 and i in other patentsas well, from which it will appear that none of the three spool sections could be interchanged or reversed and none ofthem could be used in a single or narrow loom tube-frame.

The present improvement solves this problem by providing theends of all yarn spools with two journals of difiere'nt' di ameter adapted to fitrespectively either the small bearing apertures of the end brackets of both Wide and narrow loom tube-frames or the large bearings of the intermediate bearing brackets or stands of the wide loom tube-frames, the respective journal -mem-- hers being so related that either may function in its appropriate bearing without interference from the other. M oreoverf provision is made for rotatably interlocking the spool sections together 'tocause uniform delivery of yarn from all sections simultaneously when the spools aroused in Wide loom tubeframesr i These and other features of the invention will be fully described in the following specification and will be defined in the claims annexed. i i v In tne accompanying drawings we have illustrated specific embodiments of the principles of this invention, in which:

Figure l is a front elevation of a multiple spool tube-frame illustrating the mode.

of use of the improvement.

Figure 2 a detail view showing one end constructon of the spool in central longitudinal section. I

Figure dis a detail end elevation of the end 01" the spool.

F1gure 4 1s an elevat1on on the plane 4M4 of Figure 2.,

through two adjacent interlocked spools showing the inter-engaging parts; 7

Figure 6 is detail view of the yarn clamp anchoring member.

Figure 5 is a longitudinal central section I Figure 7 is a detail longitudinal section of a modified construction of spool bearing support.

Figure 8 is an enlarged end view of the projecting gudgeon shown in Figure 7.

Figure 9 is a detail view of the shittable pintle and its support on the same scale as Figure 8.

Figure 10 is an end elevation showing the assembled relationship of the gudgeon and shiftabl-e pintle.

Figure 1.1 is a verti val section through adjacent spool ends showing both pins in central position.

lVe have herein shown the in'iprovemcnt applied specifically to a multiple spool tube-frame embracing a longitudinal carrier-bar 1, along one side of which is socured a row of tuft-tubes 2, and having, at its ends, suspension 1 "ackets or ears comprising a chain-penetrating arm 3 and its associated spool-bearing member 4 with a movable hook latch 5, by which the tubetraine is engaged and disengaged fromthe overhead carrier chains in the usual man:

ner.

Beside the end spool brackets there are also provided intermediate spool bearing brackets or stands 6, whose bearings 7 are of considerably larger interior diameter than the bearing recesses or holes formed in the end brackets.

Each spool comprises a barrel 8, which may be solid as in Figure 2, or tubular as in Figure 7, and end heads 9 which are secured to the opposite ends of the barrel in any suitable manner, for example, by means of a sleeve 11 into which is inserted a countersunk central or hub portion 9 of the disk or head 9, to which it is fastened by soldering or otherwise. These heads usually have a peripheral flange 9" for engagement with a brake. Secured to the spool structure are cylindrical bearing gudgeons 10 which, in this case are formed of hollow metallic cuplike members having inwardly projecting prongs 10, adapted to pass through apertures in the hub 9 of the spool head and to be clinched or bent down on the inner side thereof.

One feature of the present invention involves the use of a special construction for anchoring or attaching the yarn-gripping clamps one of which is attached to each spooltul of yarn to keep the tui't elements properly separated for being threaded in to the tube frame. This clamp-attaching member comprises a centrally perforated disk 12, having peripheral projecting hooklike arms 12, arranged symmetrically around the axis to be engaged by the end hooks or eyes of a contractile helical spring 14:, which serves to secure the yarnelamp 13 and hold it in place on the spool by reason of the pull exerted against the retaining hooks 12. As

shown, these hooks are turned inwardly and notched so that they hold the contractile spring under tension against allowing endwise movement or shitting of the yarn-spool.

Should the yarn-spool be displaced endwise,

the engagement between the spring and its hook will not be released.

The gudgeon 10 is of a size to be journaled in the bearing 7 of the intermediate spoolbraeket 6 but they are also provided with centrally disposed bearing pintles 15 which are seated interiorly ot the spool. barrel and are normally thrust outward by a spring 16 thrusting against the inner end of the journal pin. It should be stated that the locking prongs 10 of the gudgeon pass throughapertures in the disk 12, as well as those in the hub 9 As will be understood, whentwo spool ends are brought together the central pintles 15 thrust against each other and serve to push each other inwardly until their outer ends are almost flush with the end faces of the gudgeons 10. As it is often desired, however, to interlock the two adjacent spools in a tube-frame together so as to insure equal delivery of the yarn from both, we have made provision for effecting such interlocking engagement by shifting one of the pintles from concentric to eccentric position.

With this object in View the end of the hollow gudgeon 10 is provided with an annularly arranged series of apertures any one of which is adapted to receive the projecting end of the co-acting pintle when the pintle is shifted to eccentric position. To permit this shifting movement the hub 9 is slot-ted, as shown at 9, to permit this swinging or lateral movement of the pintle, the slot being narrow enough, however, to form an abutment for the shoulder 15" formed by reducing the outer portion of the pintle to smaller diameter than the inner portion so as to limit the outward thrust of the spring 16.

it. guide washer 15 is applied to the inner end of the pintle to guide the inner end and to receive the thrustof the spr ng 16. The

tip end 15 of the pintle is also preferably reduced somewhatin diameter to make it smaller than the portion passing through the gudgeon.

In addition to the apertures 1O formed in the outer end of the gudgeon 10, there is a sort of keyhole slot or hour-glass slot 10 formed by joining a centrally disposed aper ture with one of the surrounding interlocking apertures as shown at 10. The narrow part of this slot will not permit the intermediate portion of the pintle 15 to swing from concentric to eccentric position, but in order to do this the pintle must be pushed in until its relatively narrow tip lies in position to pass through said communicating slot and in that position the pintle may be adjusted to either eccentric or concentric position. In

this eccentric positionit. wilLbe locatedproperly to penetrate anyv one of. theholes 10.-. of the opposing. gudgeon. of the adjacent.

spool with which it isbroiight into register. From the foregoing. it Wlll be seen that identically the samespool maybe used either in a. single spool tube-frame for narrow.

spool. brackets and these are so arranged.

that neither interferes with the other or prevents the other from functioning properly. Forthe same reason any spools of themul tiplo series can be reversed end to. end.

In. Figures 7 to10 is illustrated a modified construction intended for the same purpose. In this case the hollow gudgeon. 20,"of very similar construction to that previously described, is secured to the hub '9 of thehead 9 of the spool barrel. In the outerend of the hollow gudgeon 20 is bored, at a, proper distance off-the center, a large circular aperture 20 said aperture being further cut away beyond the center of the gudgeon and alsov toward its periphery to form two approximately semi-circular. recesses 20%, communicating directly. with the main ap erture at 20 The interior. aperture 20 is drawn on an arc concentric with the oenter'of the gudgeon and the outer apers ture 2.0 is drawn on a similar circle or radius. Inside of the gudgeon is mounted, eccentrically thereof, a disk 23 having a ccn trally disposed inwardly projecting; guidepin 24. This disk also carries an outwardly projecting pintle. 21 at its extreme edge portion'which is transversely notched at 21 'for a purpose to be described. Diameti'ically opposite to the location of the pint-1e 21, the disk is formed with an approximately semi circular recess which, in conjunctionwith the exterior recess 20 of the gudgeon 20, forms a circular aperture for the reception of the pintle of an adjacent spool placed in end to end relation to a'simi'lar spool. A helical spring 25 acts to normally thrust the disk 23 outwardly against the inside end face of the gudgeon20. The disk is enough larger than the opening 20 so that its dge portion bears against the inner face and allows the disk to be rotated, carrying the pintle 21 with it from a position that is central to the gud'geon to a position 180 degrees therefrom, that is, eccentric to the gudgeon.

Normally the outer side of the pin 21 seats itself in either recess 20, according to its position of adjustment. To permit the disk to berotated or adjusted from one position. to the othera notch is'cut through its outside at a. short distance from the outside face of the. disk 20, so. that normally the uncut portion of the pin interlocks with either recess 20, to prevent. accidental displacement. while, bypressing the 'disk and pintle. inwardly against the spring tension, notch 21 in the pin is brought into alignment with the bounding edge of the orifice 20 and in this position the d isk'may be rotated to engage the pin with theopposite notch or recess 20. It will, therefore, be

seen that the pintle 21 and the recess 23? in.

the disk 23 are shiftable to occupy either.

the concentric position or the eccentric position, according to the use to which the pint-lo is put, whether to serve as a central bearing member or as an eccentric spool-interlocking member.

In some cases it is preferred not to make use of any interlock between the spools.

hence to meet such a situation the pins of In such position, however, there is.

ill)

gudgeon has its transverse wall, of the same 0 construction as before, inseta distance froin the outer end a little greater than the length of the reduced tip 15 so that when the end of the tip is substantially flush with or even slightly inside the outer end of the gudgeon 10, the shoulder projects slightly beyond or outside of the transverse pin-retaining wall.

It will, therefore, be seen that the principle of construction allows complete adaptation to every desired condition of use, for it will be obvious upon an inspection of Fig ure 11', that whether the transverse or pinlocating wall be located at the extreme end of the gudgeon or inset therefrom the pin may still be adjusted to interlocking posisecured to the ends of the spool sections for rotatably supporting the spool sections in intermediate bearings, and adjustable pintles mounted in said gudgeons to serve according to theiradjustment either as a supporting journal for the spool section or as a means for rotatively interlocking adjacent spool sections together to cause equal rotation of adjacent spool sections thus interlocked.

2. A yarn spool adapted to be rotatively mounted in bearings for the delivery of yarn, comprising a barrel, and gudgeons adapted to form supporting journals fitting the bearings of the intermediate stands of a tube frame, and pintles arranged to project centrally of said gudgeons to lit bearings in the tube frame end brackets, said pintles being displaceable from their normal spool-supporting positions to permit the gudgeons of two adjacent spools to be brought together.

3. A yarn spool adapted to be rotatably mounted in bearings for the delivery of yarn, comprising a barrel, journal gudgeons secured to the ends of the barrel and journal pintles adjustably mounted in the gudgoons and shiftable from coaxial spoolsupporting position in said gudgeon to eccentric position for interlockingly engaging the gudgeon of an adjacent spool.

l. A journal for a yarn spool embracing a hollow cylindrical gudgeon adapted to be secured to the end of a yarn spool, a pintle coaxially mounted in said gudgeon to project centrally therefrom and shiftable to eccentric position relative to said gudgeon to form interlocking engagement with the gudgeon of an adjacent spool to cause both spools to rotate equally. for the delivery of yarn.

5. A yarn spool embracing a barrel and cylindrical end gudgcons adapted to form journals for rotatably supporting the spool in appropriate bearings, said gudgeons being provided with apertures in their end fares, equally distant from the spool axis, adapted to receive a pintle projecting from the gudgeon of an adjacent spool, and having also a projecting pintie that is adjustable from central position where it serves as a bearing journal, to eccentric position to penetrate o'll' centre apertures of a similar gudgeon to interlock two adjacent gudgeons together for equal rotation.

6. A. yarn spool embracing in its construction a barrel, hollow end gudgeons secured to said barrel and projecting axially outward therefrom to form spool-supporting journals, said gudgeonsbeing provided with a pintle-receiving aperture in their ends one of which is centrally located, and a pintle arranged to project from the central aperture and shiftable therefrom to project through another aperture located eccentrica-lly of t e gudgeon.

7. A yarn spool embracing a barrel, hollow gudgeons secured to the barrel to form end journals to rotatably support the spool in appropriate bearings, eaclrgudgeon having a central aperture and also a concentrically disposed series of apertures adapted to receive a projecting pintle of an adjacent spool, the central apertures having communication with one of the other apertures by means of a slot, and a spring-pressed pintle arranged to project outwardly from said gudgeon through the central apertures or through the outer aperture connected therewith according to its position of adjustment.

8. A yarn spool embracing in its con struction a barrel, sheet metal ends secured thereto by means of a countersunk hub portion, hollow gudgeons secured in said hubs to project axially therefrom and form spoolsupporting journals, journal pintles carried by said gudgeons and adapted to project endwise therefrom either centrally thereof or in off centre relation to the gudgeon in order to serve either as a spool-supporting journal or an interlocking connection with a similargudgeon.

9. A yarn spool embracing a barrel, end gudgeons secured thereto for rotatably supporting the spool in bearings of'corresponding dimensions, movable journal pins mounted interiorly of the gudgeons to rotatably support the spool in bearings corresponding to their dimensions and to form, when desired, interlocking connection between two end spools to' insure equal rotation of both spools.

10. In a tube frame the combination with a carrier having spool-supporting brackets at its opposite ends and one or more intermediate spoolsupporting brackets arranged to support a plurality of spools end to end, and a series of spools rotatably mounted in said bearings, each spool having at each end inner and outer concentric bearing elements dimensioned respectively to coact with corresponding bearing elements in the end brackets and in intermediate brackets whereby either end of each spool may be rotatably mounted in either end bracket or in any intermediate bracket.

11. A yarn spool for tube frames embraciug in its construction a barrel, spool-sup porting gudgeons secured at eachend thereof to rotatably support the spool, a transverse pintle-locating wall secured inside said gudgeon at a distancefrom the outer end edge IOU of the gudgeon, said wall being perforated and slotted, and a longitudinal pintle adjustable at will from central position to eccentric-position in said wall to engage a corresponding pintle or its containing gudfrom the ends thereof, each gudgeon being provided with a radially slotted and eccentrically perforated transverse pintle-locating member, a pintle located inside said journal to project through said slot beyond the outer end of the gudgeon and adjustable in said slot to either central position or to eccentric position, the slot being narrowed intermediate of its central and outer portion to retain-the pintle in either position of adjustment.

13. A yarn spool for a tube frame or the like embracing a barrel, end journals for rotatably supporting the spool in bearings and a clamp-anchoring device embracing a body portion, and projecting prongs arranged around and in proximity to said journals in position to releasably retain clamp-attaching members.

In Witness whereof, We have subscribed 30 the above specification.

EDGAR F. HATHAWVAY. WALTER BIXBY. 

